More ideas from David
I picture this as Seir's final form, but I don't see him as the devil, just something else, but you need to read the books to find out.   Interestingly, what you see here is more a modern interpretation of Lucifer after Christianity became the dominant religion and paganism became outlawed or deeply frowned on: "Lucifer on the throne in Paradise Lost" by Simon Bisley

a modern interpretation of Lucifer after Christianity became the dominant religion and paganism became outlawed or deeply frowned on: "Lucifer on the throne in Paradise Lost" by Simon Bisley